Lingulate brachiopods from the Suchomasty Limestone (upper Emsian) of the Barrandian, Czech Republic

Abstract

Lingulate brachiopod fauna from Suchomasty Limestone (upper Emsian, P. serotinus Zone) are examined. Eleven species were observed, of which Kosagittella robusta, Chynithele intermedia, Lochkothele rugellata and Praeohlertella lukesi are described as new taxa. Associated Opatrilkiella kobyla, Havlicekion frydai and Opsiconidion coralinus were described previously from the Chýnice Limestone of the Barrandian area. Four taxa are left in open nomenclature including further evidence of the siphonotretid Orbaspina in the upper Emsian. The composition of the fauna shows distinct difference to other Emsian and Eifelian lingulate brachiopod faunas of the Koněprusy area of the Barrandian. •

Response of organophosphatic brachiopods to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events in the Prague Basin (Czech Republic)

“…from the Chýnice Limestone (mid-Emsian), K. robusta Mergl & Jiménez-Sánchez, 2015 from the Suchomasty Limestone (late Emsian), and K. pulsatilla Mergl, 2009 from the Acanthopyge Limestone (Eifelian). The diameter of pits in all Devonian species varies around 2 μm with the exception of the early neanic shell (Mergl 2009, Mergl & Ferrová 2009, Mergl & Jiménez-Sánchez 2015 and confirms the assignment of all these species to Kosagitella which has an overall stratigraphical range of Ludlow to Eifelian.…”

“…The environmental limits of Kosagittella are not well known, but its Devonian species in the Prague Basin are most abundant in shallow or moderately deep, oxic and assumed warm-water environments (Řeporyje, Chýnice, Suchomasty and Acanthopyge limestones; Pragian to Eifelian). The genus is rare in black limestones of hypoxic origin (Mergl 2001a(Mergl , 2009Mergl & Ferrová 2009;Mergl & Jiménez-Sánchez 2015).…”

“…At least two post-Ordovician genera are known, the first an unnamed acanthambonine genus from the Wenlock of the Prague Basin (Mergl 2001a, b). The second unites "Siphonotretaˮ anglica (Morris, 1849) from Wales, and several so far unnamed species referred to Orbaspina Valentine & Brock, 2003 coming from the upper Llandovery of New South Wales, Australia (Valentine & Brock 2003), and Ludlow to Emsian of the Prague Basin (Mergl 2001a(Mergl , 2003Mergl & Vodrážková 2012;Mergl & Jiménez-Sánchez 2015).…”

Vertebrate Microremains from the Pragian, Emsian and Eifelian of the Prague Basin (Czech Republic)

“…Associated conodonts indicate the lower part of the P. serotinus Zone. Other phosphatic microfossils are represented by conodonts (for list see Mergl & Jiménez, 2015), caudal spines of phyllocarid crustaceans, sclerites of Eurytholia, conulariids (Mergl et al, 2016) and diverse organophosphatic brachiopods (Mergl & Jiménez, 2015). The non-phosphatic fauna is represented by highly diversified rhynchonelliform brachiopods, trilobites, cephalopods, and crinoids, with less abundant gastropods (Havlíček & Kukal, 1990).…”

“…However, the presence of vertebrate microremains in the Prague Basin was noted in the Chýnice Limestone (Mergl & Ferrová, 2009), Suchomasty Limestone (Mergl & Jiménez, 2015), and Acanthopyge Limestone (Hladil et al, 1992;Mergl 2008) but without any additional data. They were picked from residues as a by-product of phosphatic brachiopod and conodont sampling.…”